Untitled record

No. 29,867.

H. L. EMERY.

Cotton Gin.

Patented Sept. 4, 1860.

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N. PETERS. Photo-Lithographer. Washington. D, C.

United States Patent - Office.,

HORACE L. EMERY, OF ALBANY, NEW YORK.

IMPROVEMENT IN COTTON-GINS.

Specification forming part of Letters Patent No. 29,867, dated September 4, 1860.

To all whom it may concern:

Be it known that I, Horace L. Emery, of the city and county of Albany, and State of New York, have invented a new and useful Improvement in Cotton-Gins; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which—

Figure 1 is a transverse section of the hopper of a saw cotton-gin with my invention applied to it; Fig. 2, a transverse section of the same, showing its operation; Fig. 3, a detached plan or top view of the same.

Similar letters of reference indicate corre^:spending parts in the several figures.

This invention relates to an improved mode of feeding or presenting the seed-cotton to the action of the saws, rollers, or other means employed for separating the staple from the seed.

The object of the invention is to produce a uniform motion of the roll of cotton within the hopper throughout the entire length and circumference of the roll, and to support or so sustain the roll that the portion in immediate contact with the saws or other lint-separating device will not be deflected by gravity or other causes so as to press upon said device—a contingency which is injurious, especially where, saws are employed, as a “cutting” and “napping” of the lint is the result.

The within-described invention·consists in the employment or use of a cylinder constructed of light wood or other suitable material, studded with radial spikes or teeth, and placed longitudinally within the hopper, substantially as hereinafter described, whereby the desired end is attained.

To' enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the hopper of an ordinary saw cotton-gin, and B is the breast thereof. C is a cylinder or shaft, constructed of light wood or other suitable material, fitted longitudinally in the hopper A, and provided with journals a, quite small in diameter. The j ournals a are fitted in circular openings b in the sides of the hopper A, said openings b being- quite large in diameter, so as to admit of a considerable lateral play or movement of the cylinder or shaft 0. (See Fig. 3.)

At each end of the cylinder or shaft 0. there is attached a circular plate or disk, D, said plates being considerably larger in diameter than the openings b, so that the latter may be kept covered by the former in any position of the cylinder or shaft. The cylinder or shaft C is studded with radial spikes or teeth c, any proper number being used, and extending along the whole length of the cylinder or shaft. The spikes or teeth c may be from two to three inches in length. The cylinder or shaft C may be from two to three inches in diameter, and the journals a, if of iron, may be about onefourth of an inch in diameter.

When the gin is in operation and the seedcotton fed into the hopper A, the seed-cotton becomes wound around the shaft or cylinder C, and the latter is at the center of the roll, which roll is rotated by the action of the saws, rollers, or other lint-separating device, and the lint separated from the seed, as usual. The shaft or cylinder C serves as a support to the roll, as will be readily seen, and prevents that portion'of the roll acted upon by the saws or other lint-separating device being compressed against said device by the gravity of the. roll, and any undue action of the lint-separating device on the seed-cotton consequent on said pressure is avoided. The shaft or cylinder also produces a constant motion of the roll relative to that of the saws, and preserves its cylindrical form, irrespective of the different and varying velocities of the saws or the centrifugal force of the revolving- mass in the hopper. The openings b, in consequence of their dimensions admitting- of the lateral play or movement of the cylinder or shaft, permit the cylinder or shaft and roll to adjust themselves relatively to the saws and compensate for any irregularity in the diameter of the roll, while the circular plates or disks D prevent the apertures b becoming choked or clogged by the seed-cotton in the hopper. It may also be stated in reference to the within-described invention that the cylinder or shaft, with its spikes or teeth, prevent all choking, clogging, bridging, and breaking of the cotton-roll from careless feeding- or matted condition of the seed-cotton, as the positive and forcible motion produced by the action of the saws upon that portion of the seed-cotton roll lying be-tween the saws and the shaft, and communi29,867 cated through it and its spikes or teeth to the whole roll, is sufficient to overcome all such irregularities, as also to admit of the gin being worked up to the maximum power applied, be it more or less, without danger of stopping the operation of the gin or injuring the quality of the lint.